Convert FITS to AI

FITS to AI converter that respects your privacy. No cloud uploads, no file size limits — just fast offline batch processing.

Got a folder full of FITS files? reaConverter batch converts them to AI in minutes, not hours. Local processing means instant results, even with thousands of files.

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting FITS files in under two minutes. Apply image edits like resize, crop, or color adjustment while converting.

Install reaConverter

2. Load your FITS files

Add your FITS files to reaConverter. Whether it's a handful or an entire archive, the batch engine processes them efficiently.

Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.

3. Select AI as output format

Pick AI as the output format. Set the destination folder and optionally configure resolution, quality, or file naming.

4. Start FITS to AI conversion

Start the conversion with one click. reaConverter handles everything and notifies you when it's done.

When the batch finishes, your AI files are ready in the destination folder you chose earlier.

FITS to AI Converter

reaConverter offers the fastest, simplest solution for converting your FITS files into AI in seconds - all images processed on your PC for maximum privacy and speed.

Download Free Trial

Do more with your images

Converting FITS images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

Image editing tools

User Reviews

Average User Rating:
Last updated on January 25, 2026

"Essential for our astroimaging pipeline! reaConverter perfectly handles FITS files from our research telescope, preserving all WCS coordinates and photometric data during batch conversion to TIFF. Now we process 100+ deep-sky exposures nightly without losing critical metadata for our exoplanet studies!"

Joseph Wilson

Satisfied Customer

"reaConverter makes FITS conversion incredibly easy. We batch convert astronomical images to standard formats for presentations and analysis, all automated through the command-line. It’s fast, reliable, and handles large datasets without issues."

Laura N.

Astrophysics Research Assistant

"Finally an app that actually opens my weird files! Saves me from format frustration daily."

Kyle Brooks

Happy User

"This converter delivers exceptionally quick format conversions with reliable results every time."

Brian White

Happy User

"Security was our top concern when evaluating file conversion tools. reaConverter’s offline mode and role-based access controls let us lock it down for sensitive environments. No unexpected network calls or bloat — just clean, fast conversions. Even passed our pen-testing scans without a hitch."

Marcus White

Healthcare IT

"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."

Roger Cook

Happy User

FITS to AI Conversion: FAQ

Can reaConverter convert FITS to AI?

Yes! reaConverter instantly converts .fits to .ai with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert FITS to AI online?

If you only need to convert a few FITS files to AI format, feel free to try our free online free online FITS to AI converter — perfect for small batches with no installation needed!

How can I turn FITS files into AI on my computer?

The best way to change FITSs to AIs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from FITS to AI.

How can I automate FITS to AI files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert FITS files to AI using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line fits to ai converter for batch processing.

What else can I do with reaConverter?

Convert vector files Convert picture color space Change file date Change format settings Change image DPI